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Finding the Fourth Proportional to 17,817.12, 26,734.97 and 12,927.11

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Solution

The fourth proportional to 17,817.12, 26,734.97 and 12,927.11 is: 19,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,817.12 : 26,734.97 = 12,927.11 : x
  2. Step 2: Convert to fraction form
    17,817.12/26,734.97 = 12,927.11/x
  3. Step 3: Cross multiply
    17,817.12x = 26,734.97 × 12,927.11
  4. Step 4: Simplify right side
    17,817.12x = 345,605,796.68
  5. Step 5: Solve for x
    x = 345,605,796.68/17,817.12
  6. Step 6: Final answer
    x = 19,397.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.